%0 Journal Article %A P. I. Lizorkin %T The functional characterization of the interpolation spaces $(L_p(\Omega),W^1_p(\Omega))_{\theta,p}$ %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1975 %P 180-203 %V 134 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1975_134_a12/ %G ru %F TM_1975_134_a12